EP 0308934 B1 19911218 - VALVE MEANS
Title (en)
VALVE MEANS
Publication
Application
Priority
FI 874147 A 19870922
Abstract (en)
[origin: EP0308934A1] Disclosure is given for a valve means in hydraulic circuits, particularly though not exclusive adapted for use in lift applications or in controlling the hydraulic actuating means of robots. The valve body (1) incorporates two running spindles (3, 4) with seats (5, 6), an input duct (9), a return duct (10) and a working duct (11). Apertures (7, 8) and fluid-flow are controlled by pilot valves (14, 16), which are provided in a passage (15, 18) of the running spindles (3, 4).
IPC 1-7
IPC 8 full level
F16K 11/14 (2006.01); B66B 1/04 (2006.01); F16K 31/42 (2006.01); G05D 16/16 (2006.01); G05D 16/10 (2006.01)
CPC (source: EP US)
B66B 1/24 (2013.01 - EP US); G05D 16/166 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI LU NL SE
DOCDB simple family (publication)
EP 0308934 A1 19890329; EP 0308934 B1 19911218; AT E70521 T1 19920115; CA 1303462 C 19920616; DE 3867010 D1 19920130; DK 164829 B 19920824; DK 164829 C 19930104; DK 522288 A 19890323; DK 522288 D0 19880920; FI 874147 A0 19870922; JP H01108479 A 19890425; JP H0730848 B2 19950410; NO 170301 B 19920622; NO 170301 C 19920930; NO 884185 D0 19880920; NO 884185 L 19890328; RU 1769785 C 19921015; US 4938119 A 19900703
DOCDB simple family (application)
EP 88115596 A 19880922; AT 88115596 T 19880922; CA 578006 A 19880921; DE 3867010 T 19880922; DK 522288 A 19880920; FI 874147 A 19870922; JP 23667688 A 19880922; NO 884185 A 19880920; SU 4356689 A 19880921; US 24634688 A 19880919